EP0638419B1 - Supporting framework for a rotary web printing press - Google Patents

Description

The present invention relates to a support frame for a roll rotating machine for the inclusion of at least one printing unit.

In known printing press configurations, the printing units are of a printing tower stacked on top of one another or even the elements of the Printing units, namely the cylinder elements and the color and Dampening units, placed side by side and on top of each other. A An example of the first of these two configurations is from the DE 42 19 705 A1 known. In both cases, they must be placed on top of one another Units are designed to be self-supporting and the carry the units on top. You are therefore in accordingly stable design. The design effort of such a Support structure is further increased by the fact that the cylinder, color and Dampening elements themselves have a supporting function and are accordingly to be dimensioned stronger than their real ones Task would require.

A support frame for a web-fed rotary printing press for holding at least one Printing unit created by a cylinder element with several cylinders and the cylinder element assigned inking and dampening units is known from DE 29 24 591 A1. This document relates in particular to a base for a web-fed rotary printing press. The substructure is in an externally prefabricated metal frame with support elements molded on which the paper holder, paper drive, paper feed and Paper changing devices are attached. The printing units of this printing machine are in place on the substructure. This is to avoid the retraction of a false ceiling that should rest on pillars.

The present invention has set itself the task of a Support frame as a supporting structure for a web-fed rotary printing press to create so that the individual printing press elements can be built modularly with the least possible effort for the required stability and optimal accessibility for the Operation and maintenance of the printing press elements. The printing press should be cheaper and cheaper to operate by the invention become.

This object is solved by the subject matter of claim 1.

The subclaims are advantageous, not self-evident Embodiments of the subject of claim 1 directed.

With a printing unit or a printing tower of a web-fed rotary printing press with at least two printing units arranged one above the other, the respective cylinder elements with several cylinders and have inking and dampening units assigned to these cylinder elements, according to the invention, the cylinder elements and the color and Dampening units held in a supporting structure, which serves as a supporting frame already in itself or at least in a rigid connection with the cylinder elements is stable.

This will put the printing units or even the one on top of the other individual cylinder elements and the inking and dampening units avoided. These units no longer need to be inherently stable. In particular, the cylinder elements and inking and dampening units itself no load-bearing functions in the structure of the printing press take over and can therefore be easier and cheaper than at conventional construction. While in the conventional construction, the load-bearing parts are manufactured to fit must be so that the cylinders and rollers in the supporting structure can be integrated and take on a supporting function, there is no need for the supporting structure according to the invention precisely fitting processing. Structural parts can therefore particularly cost-effective made of reinforced concrete or similar inexpensive Building materials to be made. The one in making a suitable one Hall floor effort to be driven when using the invention Support structure reduced. Furthermore, the supporting structure already independent of the complex machine parts on Destination are set up. After they are set up the cylinder elements, inking and dampening units, the folder and other machine parts easily and very quickly into the existing one Install the supporting structure. Due to the supporting structure according to the invention, especially the inherently stable supporting structure, it becomes possible the printing press is largely modular and comparatively simple build interchangeable units. Build the modular units no longer load-bearing on each other, but you can on the Support structure are supported, for example by a fixed adjustable connection, by hanging, or they can be moved be adhered to. Finally, the invention allows the printing press with the least possible additional effort with work platforms for the operating and maintenance personnel. The in the operation of the Working platforms used in the printing press can also be used at the Installation of the machine, especially when installing the machine parts embedded in the supporting structure in the supporting structure or just be added to it.

The supporting structure according to the invention enables in particular simple way to improve the accessibility of machine parts, by the inking units or parts thereof as modular units are trained, from their working position to the respective Cylinder elements movable on the support structure and / or Cylinder elements are held. Although the combination of a Support structure with the mentioned movability of inking units, dampening units and possibly other machine parts offers special advantages, also brings the movability advantages alone in terms of space requirements and for Maintenance of the machine.

The traversability of inking units par excellence is from DE-AS 1 169 959 known. There is a multi-color sheet-fed rotary printing press designed as a series machine disclosed. The printing unit is by two, assigned to a printing cylinder, approximately arranged one above the other Form or plate cylinder and this in turn assigned Inks formed. The two inking units are in one Frame on inclined tracks in the transverse direction to the longitudinal axes of the Form or plate cylinders can be moved.

A unit that can be moved in the transverse direction to the cylinder longitudinal axes of pressure cylinders is known from EP 0 315 917 A2.

In contrast, according to the invention, the units to be moved summarized inking unit parts in the direction of the cylinder longitudinal axes movably arranged on the supporting structure.

Since the movable units in the direction of the axes of rotation Cylinder can be moved compared to the known or Swivel mechanisms reduce the cross to the Rotation axes of the rollers measured length of the printing press be achieved. This advantage comes especially with the big ones Series printing presses that are 8, 16 or can have more pressure towers arranged one behind the other, for Carry. Compared to the conventional printing towers, which none possess movable units, the cylinder elements and Inks are arranged closer to each other, since on the otherwise for access to the cylinder elements and inking units necessary Maintenance tunnel can be dispensed with. In the working position of the Cylinder and the inking unit rollers therefore no longer need that Accessibility to be respected, so that the color works in each himself and also towards the other inking units as well as towards the cylinder elements are built and arranged to save space can. In the extended position, both the color and Dampening units as well as the pressure cylinder elements are optimally accessible. Furthermore, the replacement of machine elements in the case major maintenance or repair with almost no production downtime be made. It can also be flexible in use such printing units can be increased by for different Different demands on the quality of the printed products Inking units alternatively used and in their respective working position can be driven. So in the same printing press different inking units, e.g. Short inking units with different inking processes for different print qualities or printing units with different printing processes such as Flexo or Gravure printing process used or with each other as required exchanged and combined if necessary.

Conventional blanket cylinders can also be replaced with new blanket cylinders with continuous blankets for the use of a computer to replace press systems later.

One with each in the movable units is particularly advantageous the dampening system interacting with the inking unit, such as the inking unit for Part or all integrated. So that's not all extended inking unit or dampening unit for maintenance work easily accessible, but it can also be the correspondingly exposed part of one or more forme or plate cylinders, blanket cylinders and possibly a central cylinder existing cylinder element be made easily accessible for maintenance work. Especially an entire inking unit with an entire dampening unit is preferred combined into such a movable unit. Both the Cylinder elements as well as the inking and dampening units are based on them Exit freely accessible. The changeover times when changing from color to Dampening unit types are the shortest and the most constructive Effort is the least due to the low fragmentation. At this summary of inking and dampening systems will also be the extensive reductions in the total height and Total length of the printing press achieved.

There is advantageously between the cylinder elements and the sliding units except the bracket on the supporting structure no mechanical connection. The movable units are each equipped with a separate drive. Basically, however also coupling the movable units into a drive system possible for the entire printing unit, but still a additional auxiliary unit for driving the rollers of the movable Unit in the extended state would be necessary. In addition to your own The movable unit also has a drive for carrying it out control unit necessary for maintenance work.

The supply of the mobile unit, i.e. the supply of the Drive and control device, can be via a trailing cable or via a plug-in connection that has only been established in the extended state respectively.

Figur 1

die Vorderansicht einer Rollenrotationsdruckmaschine;

Figur 2

eine Seitenansicht eines Druckturms der Rollenrotationsdruckmaschine von Figur 1 mit zwei übereinander angeordneten Druckeinheiten;

Figur 3

eine Druckeinheit des in Figur 1 dargestellten Druckturms;

Figur 4

einen Druckturm nach Figur 1 im Vergleich zu einem herkömmlichen Druckturm;

Figur 5

eine Draufsicht auf einen Druckturm nach Figur 1;

Figur 6

in Wartungsposition ausgefahrene Farb- und Feuchtwerke in Vorderansicht;

Figur 7

Ausricht- und Verbindungselemente zwischen einem Zylinderelement und der Tragkonstruktion; und

Figur 8

eine Vorderansicht des Aufbaus einer weiteren Ausführungsform einer Tragkonstruktion.

A preferred embodiment of the invention is explained below with reference to drawings, further features of the invention being disclosed. Show it

Figure 1

the front view of a web-fed rotary printing press;

Figure 2

a side view of a printing tower of the web-fed rotary printing press from FIG. 1 with two printing units arranged one above the other;

Figure 3

a printing unit of the printing tower shown in Figure 1;

Figure 4

a pressure tower according to Figure 1 in comparison to a conventional pressure tower;

Figure 5

a plan view of a printing tower according to Figure 1;

Figure 6

Front view of inking and dampening units extended in maintenance position;

Figure 7

Alignment and connecting elements between a cylinder element and the supporting structure; and

Figure 8

a front view of the structure of a further embodiment of a support structure.

In Figures 1 and 2 are pressure towers 1, each with two on top of the other arranged printing units 5, of which Figure 3 is a single shows again enlarged, in the lateral cross-section and in one Shown front view. A web-fed rotary printing press is going through at least one printing unit 5 or more arranged one behind the other assembled printing towers 1, at least one folder 3 and at least one substrate roll stand 4 is formed.

The printing units 5 are in the exemplary embodiment according to the figures 1 to 3 each modularly from a cylinder element 6 and four assigned, movable units 10 constructed. The cylinder element 6 is in the form of a satellite printing unit with a central cylinder 7, four blanket cylinders 8 and four blanket cylinders 8 associated form or plate cylinders 9 formed. The cylinder element 6 is on four stationary columns 30, which are for the printing units 5 side pillar pairs 30 form, rigidly attached while the units 10 in the rails 30 attached to the columns 30 in the direction of Rotation axes 21 of the cylinders 7, 8, 9 are movable. The moveable Units 10 are each an inking unit 11 and Dampening unit 15 formed. The inking rollers 12 and the dampening agent application rollers 16 can be pivoted away from the forme cylinders 9.

The printing units 5 are on both sides arranged pairs of columns 30 supported, together with connecting Cross members 50, 150, 151, 152 the essential part of a Form support structure 2. The printing units 5 are in this way of the side column pairs 30 and one upper and one each framed lower cross member 50. Each of the movable units 10 can individually straight in the direction of the axes of rotation 21 of the Cylinders 7, 8 and 9 between a working and a maintenance position be moved. For this purpose, the units 10 run on rollers 20 in the track rails 19. However, there are basically also others Movement mechanisms conceivable. The two each over a cylinder element 6 arranged units 10 are hanging, and each units 10 arranged under the cylinder element 6 supported on the cross beams 50 by the columns 30.

The cylinder elements 6 arranged one above the other are on the right and a pair of columns 30 to the left of it, for example appropriate alignment and connecting elements supported. The Support structure 2 of the exemplary embodiment is sufficiently rigid, around the cylinder elements as well as the inking and dampening units carry. In this way, the cylinder elements 6 can also be modular in principle be changeable. However, the cylinder elements 6 can also be sufficient stable design and correspondingly firm connection with the Columns 30 stabilizing and supporting in the supporting structure 2 to get integrated. Corresponding drawbacks could be in this case the load-bearing capacity of the columns 30 and the cross beams 50, 150, 151, 152 be made.

Figure 4, in the equivalent components with the same reference numerals are provided, shows two printing units 5 in one conventional on the left assembled pressure tower 1 and the pressure units on the right of the printing tower 1 of Figure 1, which in addition to the inherently rigid Supporting structure also the other characteristic of the movable color and Has dampening unit 10, so that the maximum space saving is achieved. The space requirement for one is clearly recognizable maintenance tunnel 60 required in the conventional printing tower 1, that remain free with non-movable inking and dampening units 11, 15 must be able to carry out maintenance and repair work. As a result of the color and moving in the direction of the cylinder longitudinal axes Dampening unit 10 can with the right in Figure 4 Pressure tower 1 maintenance tunnel is completely eliminated, since not only that extended inking and dampening units are freely accessible, but also the cylinder elements 6 as required by moving one Ink and dampening unit 10 can be completely exposed. This allows the printing units 5 to be made flatter and narrower become. The pressure tower height is reduced in the exemplary embodiment compared to the corresponding conventional Print tower 1 on the left half of Figure 4 about 15%.

Also decrease in the supporting structure according to the invention the number of operating levels and intermediate platforms clearly.

The support structure 2 is, as can be seen in Fig. 2, by further columns 32, each in the longitudinal direction of the cylinders 7, 8, 9 are arranged next to a pair of columns 30, further developed. The The arrangement of the columns 32 is approximately mirror-symmetrical to that of the Columns 30 with which they are connected by elongated cross members. The two left-hand columns 32, which are only partially the Dead weight of the supporting structure 2 from the working position driven units 10, the maintenance personnel and for maintenance and Repairs necessary equipment need weaker be designed as the columns 30. In the exemplary embodiment, the Columns 32 still a work crane 23 to support the work.

In the lower left part of FIG. 2, one is in the disengaged state, i.e. unit 10 located in the maintenance position in dashed lines Lines indicated. In this position, the 10th summarized parts of the inking and dampening units 11 and 15 via a fixed plug connection 21 with energy and possibly with Data for a separate drive and possibly a control unit for the Rolling the movable unit 10 supplied. The lifting crane 23 can because of the lighter weight of the movable unit 10 summarized inking and dampening units or cylinder unit for one lower lifting load than this for the printing units more conventional Printing presses would be necessary, which in turn would be designed Brings cost advantages.

Figure 5 shows the printing tower 1 of Figure 1 in plan view, in which the Column pairs 30 laterally from the two arranged side by side, in Movable units 10 can be seen in the direction of the arrows A. Furthermore, one in the direction of arrow B is transverse to the direction of extension of the units 10 movable working platform 35 indicated. Such Working platforms 35 are again clearer in FIG. 6 together with several units 10 moved out into the maintenance position drawn. The work platforms 35 are respectively below and / or above the extended units 10 of the printing units 5 along further various cross members can be moved. Free movement of the Working platforms are also possible, if on the various supports otherwise lying floors are provided.

As the described embodiment makes clear, the Advantages of the invention are particularly noticeable when the Printing machine by a series arrangement of several printing units 5 or printing towers 1, each with a plurality arranged one above the other Printing units 5, each with several color and / or Dampening units 11 and 15 is formed. In this case, the largest Cost savings and the greatest space savings in terms of Printing press length and height to be expected. In the case of the invention Movability of the inking and dampening units is also no Required space, which is not even with built-in color and Dampening would occur, since their rollers and / or Cylinder when changing in the direction of their axes of rotation from the Printing machine would have to be pulled. In contrast, they need known printing presses with otherwise movable color and Dampening systems always have additional space, which is not possible with a fixed arrangement would arise. The concept of also helps to save space movable under the extended fab and dampening units Working platforms at, without making concessions to accessibility require. In the exemplary embodiment with four inking and dampening units each inking and dampening unit is in its maintenance position per printing unit freely accessible from three sides. The invention Supporting structure enables this high degree of modularity, including the movability of the inking and dampening unit, what the simple installation of the printing press and later necessary Changing machine parts benefits.

Figure 6 shows the printing tower of Figure 5 in front view, in which one unit 10 each of a lower and an upper printing unit in Direction of the axis of rotation 21 of the cylinders 7, 8, 9 in the maintenance position is extended. It can also be seen that one work platform 35 each for a lower and an upper printing unit 5 in the direction of the arrow B can be moved transversely to the extension direction of the units 10. The units 10 with the work platforms are driven under or run over. It can also be seen that for the operation of the units 10 no additional intermediate platforms corresponding to the conventional Construction according to Figure 4 are necessary.

FIG. 7 shows a detail from the front view of FIG. 3, in which a cylinder element 6 is detachably attached to the columns 30 by means of spherical alignment and connecting elements 17. Aligning the Zylinderlelemente 6 takes place in the vertical direction between the columns 30 and in the horizontal direction between the various cross beams (50, 150, 151, 152) releasable by means of the alignment and connecting members 17, 18. Di e arrangement of the aligning and connecting elements ( 17, 18) can be made at precisely machined locations on the columns (30).

The units 10 are aligned by aligning the Running rails 19, according to Figure 3, with the same alignment and Connecting elements 17, 18, not shown, are attached like that Cylinder elements 6.

Figure 8 shows a further embodiment of the invention Supporting structure. A web-fed rotary printing press shown in front view, consists of at least one printing unit 5, one Folder 3 and a substrate roll stand 4. Here is the Folder also in different cylinder elements, not shown, divided, which are designed so that they correspond accordingly align the cylinder elements 6 on the pillars 30 and detachably fasten. The substrate roll stand 4 with the attached to the columns 30 in the same way. When using the Support frame according to the invention, which is on the machine foundation is supported as a significant cost saving on the complex usual machine table substructure can be dispensed with. The Folder and roll stand elements can also go in the direction the axis of rotation 21 between a work and maintenance position be moved.

Claims (17)

1. A supporting framework for a roller rotary printing machine to accommodate at least one printing unit (5), which is formed by a roll element (6) having a plurality of rolls (7, 8, 9) and by inking and wetting units (11,15) associated with the roll element (6),
   characterised in that

   a) the roll element (6) and the inking and wetting units (11, 15) are supported on uprights (30) of the supporting framework (2),

   b) the supporting framework (2) is stable in a load-bearing manner, at least when firmly connected to the roll element (6), and

   c) at least parts of the inking and wetting unit (11,15) are combined to form modular units (10) which can be moved in the direction of the axes of rotation (21) of the rolls (7, 8, 9) opposite the roll element (6).
2. A supporting framework as claimed in claim 1, characterised in that, in the supporting framework (2), the entire roll element (6) can be moved in the direction of the axes of rotation (21) of the rolls (7, 8, 9) as modular units (10; 6).
3. A supporting framework as claimed in any one of the preceding claims, characterised in that at least parts of the wetting unit (15) co-operating with the inking unit (11) are combined with the movable parts of the inking unit (11) to form the modular unit (10).
4. A supporting framework as claimed in claim 3, characterised in that entire inking and wetting units (11, 15) each form a movable modular unit (10).
5. A supporting framework as claimed in any one of the preceding claims, characterised in that the supporting framework (2) is provided with runners (19) on which the modular unit (10) is movably held in a suspended or resting manner.
6. A supporting framework as claimed in any one of the preceding claims, characterised in that the roll element (6) is provided with runners (19) on which the modular unit (10) is movably held in a suspended or resting manner.
7. A supporting framework as claimed in any one of the preceding claims, characterised in that the movable modular unit (10) has its own drive.
8. A supporting framework as claimed in any one of the preceding claims, characterised in that the movable modular unit (10) has its own control mechanism.
9. A supporting framework as claimed in any one of the preceding claims, characterised in that the movable modular unit (10) has its own travel drive.
10. A supporting framework as claimed in any one of the preceding claims, characterised in that the movable modular unit (10) can be supplied via trailing cables.
11. A supporting framework as claimed in any one of the preceding claims, characterised in that the movable modular unit (10) can be supplied via a plug-type connector (21).
12. A supporting framework as claimed in any one of the preceding claims, characterised in that the uprights (30) are precision-machined only in the regions for holding the roll elements (6) and the inking and wetting units (11, 15).
13. A supporting framework as claimed in any one of the preceding claims, characterised in that the supporting framework (2) is extended in the direction in which the modular unit (10) is moved out, in order to accommodate the moved-out modular unit (10).
14. A supporting framework as claimed in any one of the preceding claims, characterised in that the supporting framework (2) is provided with movable operating platforms (35).
15. A supporting framework as claimed in claim 14, characterised in that the operating platforms (35) can each be moved under moved-out modular units (10).
16. A supporting framework as claimed in claim 14 or 15, characterised in that the operating platforms (35) can each be moved above moved-out modular units (10).
17. A supporting framework for a roller rotary printing machine to accommodate a printing tower comprising at least a printing unit (5), which is formed by a roll element (6) having a plurality of rolls (7, 8, 9) and by inking and wetting units (11, 15) associated with the roll element (6), a folding device (3), which is formed by rotatable cutting and folding rolls, and a printing stock roller frame (4), which is formed by at least one printing stock roller seating,
    characterised in that
    the elements (6, 11, 15) forming the printing unit (5), the main parts forming the folding device (3), and the main parts forming the printing stock roller frame (4) are held in the supporting framework (2), which is stable in a load-bearing manner, at least when firmly connected to the elements (6, 11, 15) forming the printing unit (5), so that at least portions of the inking and wetting unit parts (11, 15) combined to form modular units (10) can be moved in the direction of the axes of rotation (21) of the rolls (7, 8, 9) opposite the roll element (6).

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